Webless corrugated dual wall foundation drain



FIG. 1 is a perspective view of a first embodiment of a webless corrugated dual wall foundation drain showing my new design;

FIG. 2 is a front elevational view, the rear elevational view being the mirror image thereof;

FIG. 3 is a right side elevational view;

FIG. 4 is a left side elevational view; and

FIG. 5 is a top plan view, the bottom plan view being the mirror image thereof;

FIG. 6 is a perspective view of a second embodiment of a webless corrugated dual wall foundation drain showing my new design;

FIG. 7 is a front elevational view, the rear elevational view being the mirror image thereof;

FIG. 8 is a right side elevational view;

FIG. 9 is a left side elevational view; and,

FIG. 10 is a top plan view, the bottom plan view being the mirror image thereof.

FIGS. 1, 3, 4, 5, 6, 8, 9, and 10 are shown with a symbolic break in the article's length. Any portion of the article between the break lines forms no part of the claim. 

CLAIM The ornamental design for a webless corrugated dual wall foundation drain, as shown and described. 